SIOM OpenIR  > 高功率激光物理国家实验室
Mitigation of BSG damage caused by upstream flaw in the final optics assembly
Jiao, Zhaoyang; Sun, Mingying; Zhao, Dongfeng; Zhu, Jianqiang
2016
Source PublicationPACIFIC RIM LASER DAMAGE 2016 - OPTICAL MATERIALS FOR HIGH-POWER LASERS
ISSN0277-786X
Department联合
AbstractIn high-power laser facilities for the inertial confinement fusion, there are many large-radius optical elements, which inevitably have some flaws on the surface. The flaws can cause optical intensity intensification and therefore damage the optical elements in the downstream, especially for the beam sampling grating (BSG), which is an important element in the final optics assembly. In this paper, several physical models are established to study the optical field enhancement in the BSG position modulated by upstream flaw. Firstly, when only the linear transportation is considered, it is found that there is a peak or valley of the maximum intensity after the focus lens compared with the ideal wave front. Meanwhile the influence of flaw has an effective range. Secondly, when the nonlinear effect of the focus lens is also considered, the peak maximum downstream is much bigger than the one for the linear consideration and the damage risk of the BSG there is much higher too. From the simulation, we can see that it is important to place the BSG in a properly selected position to mitigate the laser induced damage. The results could give some references to the mitigation of BSG damage caused by upstream flaws and the layout of the final optics assembly.
Language英语
Document Type会议论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27383
Collection高功率激光物理国家实验室
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Jiao, Zhaoyang,Sun, Mingying,Zhao, Dongfeng,et al. Mitigation of BSG damage caused by upstream flaw in the final optics assembly[C],2016.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiao, Zhaoyang]'s Articles
[Sun, Mingying]'s Articles
[Zhao, Dongfeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiao, Zhaoyang]'s Articles
[Sun, Mingying]'s Articles
[Zhao, Dongfeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiao, Zhaoyang]'s Articles
[Sun, Mingying]'s Articles
[Zhao, Dongfeng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.